Abrading-wheel.



PATENTBD JAN. v

E. P. LANDIS.

ABRADING WHEEL.

APPLICATION HLED AUG z3 1906 No. 875,935. I

opposite sides ol the wheel tire of suliieient 'UNTED STATES PATENT oFFioE.

EZRA F. LANDIS, OF LA SALLE, NEW YORK.

ABRADING-WHEEL.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed August 23.1906. Serial N0. 331.748.

To all who/n it muy concern.'

Be it known that i, Ezm F, LANnIs, of

Le Salle, in the county ol' Niagara and Stute i 'can be constructed ol` line abrasive particles properly bonded, and in which the maximum grinding action may be obtained.

Other objet-ts are to so construct the wheel that f lnzing ol' the grinding-sinlaee is impossible, and in which the article being ground is .subjected to the action oi shearing edges, whereby a more eileeting grinding action is obtained.

M v invention consists in a wheel having the edges ol' its grinding-face indirect or arranged in a zig-zag or substantially :cig-Zag course, so that they act on the artielrbeing lground in a shearing-rnanner- As clearly shown in Fig. 2, the grooves in depth to pass a line drawn centrally around the circumference ol' the wheel, thegrooves on one side being out oi' line with those on the other side so that the grinding-face is periectly smooth and is given a zig-nag or irregular course; thus providing indirect or zigzag edges for the grindingdaee. The course of the grinding-face at every point of its eir eumierenee is therefore at an angle to the liml oi' movement oi' the wheel, thus forming nearirg-edges l". sti uetion a more ell'eetive grinding action is obtained. Owing to the grooving oi the Tide trices. then'eight ol' the Wheel eonsiderably red need and a more eii'eetive grinding action is' obtained than can be obtained 'with a plain tar-ed wheel olf consider-tilde larger size. l

in the drawings, Figure i is a side elevation of an nbrading Wheel embodying my in- By means ol' thisl con` vention. Fig. 2 is an edge View of the same. Fig. 3 is a transverse central section on line .Ur-:3, Fig. i. y

Referring to the drawings in detail, co1'- responding letters of reference refer to'corresponding parts in the several f ures.

A represents the whel consi ered as a whole, which may be constructed of any material used for grinding purposes, but which is preferably constructed of emery eorunduni, or similiir abrasive material.

In p noticing my invention, I' by preference eni ploy n disk or wheel, and in the confaires, radial grooves B which extend from the periphery or grinding face C inward tol ward the axis ofthe disk the desired disl tance. The ungrooved portion forms the hub I.) having the usual s indie bore E on which the wheel is mounten As is common in grinding wheels, the metallic spindleilnnges or plates bear against the sides of the hub and strengthen the wheel; that portion Zof the sides in which the grooves B are formed being exposed.

The grooves on opposite sides are arranged ont of line and provide indirect, or zig-zag edges l'or the grinding face.

reason of their deviiiting from :i direct course, are continually at an angle to the line of movement of the wheel and form shearing edges l". The shearing edges remain until the wheel is worn lo the inner ends of the grooves.

Glazing of the 'frinding ffice is prevented, since the particles ground from the article o erated on and worn from the wheel, enter t ie grooves (I, from which they drop onto the floor. I

lf desired, the principle of'my invention may be applied to reciprocating or other l styles of grinders. as i. do not Wish to limit myself to :i revoluble grinder; the accompanying illustration being merely a representative embodiment of this invention. Having thus` described my invention, what lelninz isz-fl. \n abrading ripheral grinding body having ti smooth pefaee, and grooves in at struction of said wheel, forni in the side` Said edges, by

leastone ofiits sides inward i Lbeyond the loilgitudinai oentei of said grindsaid grindjngface l.

irig si'Lrface. 2; An abradingffwhe eHivi la, smooth pel in testimony whereof, I have -afixed my v' ipheralfgrinding faeejandwra ially disposed signature in the presence of two subscribing grooves 1n its sides exteiiing inward from Witnesses. the grinding-face, the'` grooves on opposite sides being arranged out of line. r 3.y Aix abrding bodyghaving a grinding Witnesses: smface 'and-groovesI in opposite sides ar- L.`I. limon, 1Q 'ranged out` oJ line and of a depth to extend y F. F. LANDXS.

EZRA F. LANDES. 

